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kernel/linux-imx6_3.14.28/arch/mips/lasat/reset.c 1.57 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * Thomas Horsten <thh@lasat.com>
   * Copyright (C) 2000 LASAT Networks A/S.
   *
   *  This program is free software; you can distribute it and/or modify it
   *  under the terms of the GNU General Public License (Version 2) as
   *  published by the Free Software Foundation.
   *
   *  This program is distributed in the hope it will be useful, but WITHOUT
   *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   *  for more details.
   *
   *  You should have received a copy of the GNU General Public License along
   *  with this program; if not, write to the Free Software Foundation, Inc.,
   *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
   *
   * Reset the LASAT board.
   */
  #include <linux/kernel.h>
  #include <linux/pm.h>
  
  #include <asm/reboot.h>
  #include <asm/lasat/lasat.h>
  
  #include "picvue.h"
  #include "prom.h"
  
  static void lasat_machine_restart(char *command);
  static void lasat_machine_halt(void);
  
  /* Used to set machine to boot in service mode via /proc interface */
  int lasat_boot_to_service;
  
  static void lasat_machine_restart(char *command)
  {
  	local_irq_disable();
  
  	if (lasat_boot_to_service) {
  		*(volatile unsigned int *)0xa0000024 = 0xdeadbeef;
  		*(volatile unsigned int *)0xa00000fc = 0xfedeabba;
  	}
  	*lasat_misc->reset_reg = 0xbedead;
  	for (;;) ;
  }
  
  static void lasat_machine_halt(void)
  {
  	local_irq_disable();
  
  	prom_monitor();
  	for (;;) ;
  }
  
  void lasat_reboot_setup(void)
  {
  	_machine_restart = lasat_machine_restart;
  	_machine_halt = lasat_machine_halt;
  	pm_power_off = lasat_machine_halt;
  }